Spooling-machine.



A. BELZ.

SPOOLING MACHINE. APPLICATION FILED Armel. |914.

Patented Nov. 23, 1915.

2 SHEETS-SHEET 1- A. BELZ. sPooLmG MACHINE. APPLICATION FILED APR. 2l. 1-914.

2 SHEETS-SHEETZ.

4, Patented Nov, 23, 1915.

ALBERT enna, or' UNTER-Gemeen, srznnminn.

SPOOLING-MAG `1:1 il

Specification of Letters Patent.

Patented Nov. 23, 1915.

Application tiled April 21, 1914. aerial No. 833,559.

To all whom t may concern.

Beit known that I, ALBERT BELZ, a citizen of the Republic of Switzerland, residing at Klosterstrasse, Unter-Goldach, Switzerland, have invented new and useful Improvements in Spooling-Machines; and I do hereby declare the following to be'afull, clear, and A 'exact descriptionvof the lnventlon, such 'as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawing, and to letters or figures of reference marked thereon, which form a partof this specification.

In the known spooling-machines having a slotted drum, which acts as a thread guide, there is provided on the'inside of said drum a thread guide kept in a fixed position by means of a weight, or there exists a thread guide arranged between the bobbin and the drum, the thread being then guided across the slotted drum. All these known machines have, however, the drawback that a continuous change of the velocity of the thread takes place owing to the continuous change in the len th of the thread lyingr within the drum. uch machines can, therefore, not run with a lhigh speed and they cannot be employed for winding thread upon bobbins for embroidering machines, owing to the frequent breaks of the thread which would 4take place.

This invention relates to a spooling-machine and particularly7 to a machine of this kind for producing bobbins of embroidering-machines and having a slotted drum acting as a thread guide and a thread guide arranged on the inside of the drum, the thread guide in the shape of a roller being supported in a stationary bearing. According to the invention the thread is wound in such a manner around said roller that the inlet and outlet passages fory the thread in the drum are as near as possible.

One embodiment of this invention is illustrated by way of example in the accompanying drawings, in which:

Figure 1 is a side elevation of a machine embodying the invention, Fig. 2 is a front elevation seen from the right hand side of Fig. 1, Fig. 3 is a View corresponding to' Fig. 2, showing the parts in a different position vand Figs. 4 to 7 show on an enlarged scale cross-sections of details.

1 denotes the driving shaft of the spooling-machine. 0n this shaft 1 is mounted -shaft 35,

the gear 2 of a friction gearing 2, 3 and the worm wheel 4 of a worm gearing 4, 5.v On the bobbin holder G is mountedthe wheel 3 of said friction gear 2, 3; the holder 6 being supported in a frame 7. The latter is slidably mounted on shafts 8, 9 and carries a roller 10, running on the cam-shaped front end of a clutch element 12 fixed to the shaft 11, Means not shown in-the drawings cause sald roller to lie continually against the clutch element 12. A shaft 13 is arranged coaxially with the shaft 11. To this shaft 13 is fixed the worm wheel 5 of the worm gearing 4, 5 and a clutch element 14 keyed to this shaft is capable of being shifted in its longitudinal direction. The clutch element 14 has an annular groove 15 into which projects a roller 17 supported in the bifurcated lever 16 which is pivotally mounted on a pin 18. A rod 19 is pivotally connected to the lever 16, and is guided in a boring 20 of a supporting bracket 21 for the shaftl 11. The shaft 13 is surrounded by a helical spring 22, one end of which presses against a bearing for the shaft 13, while its other end lies against the clutch member 14. The object of the spring 22 is to bring the clutch member 14 in engagement with the member 12 to connect the shaft 11 to the shaft 13. 'Ihe rod 19 -is capable of striking against an arm of a double armed lever 24 pivotally mounted on a bolt 23, the clutch element 14 being in this case thrown out of gear (Fig. 1). The lever 24 is acted upon by a helical spring 25, which has the tendency to bring the lever 24 into a position, in which it releases the rod 19 (Fig. 3).

In the supporting body 27 carried by a bracket 26 fixed to the frame 7 is arranged a fixed shaft 28 on which are looselyV mounted two toothed wheels 29, 30 connected together. The larger wheel 29 gears with toothed wheel 31`fixed to the bobbin holder 6. On the shaft 28 are further mounted two arms 32 supporting a shaft 33. On the latter are mounted on the outside of the arms 32 two toothed lwheels 331, one of which gears with the toothed wheel 30. The arms two hollow shafts 34 through which pass a which is prevented from rotating by means of an arm 36 mounted on the shaft 28 and rigidly connected to the shaft 35. 0n each of the shafts 34 there is fixed a toothed wheel 37, engaging one of said wheels 33. To each of said shafts 34 is further fixed one half of a drum 38. The ad- 32 carry jacent ends of the two halves of the drum form a slot 39, the course of which corresponds to the path of movement of the thread, which has to be wound upon a bobbin. Arms 40 arranged within the drum 38 are fixed to the shaft 35 and carry a roller 42 running on balls 41. The outer surface of the drum 38 has a depression corresponding to the shape of the bobbin, which has to be produced.y

The arms 32 are rigidly connected together by means of a cross-piece 43 and on one of said arms there is provided a downwardly projecting rigid arm 44 carrying on its lower end an adjustable pawl 45, the function of which will be hereinafter described. In the arms 44 is an adjustable screw 46 arranged to engage a nose 47 formed on the frame 27 in the path of the arm 44 for the purpose of limiting the movement ofthe latter in the direction of the nose and thereby limiting the movement of the drum 38 carried by the arms 32 in the direction of the bobbin carrier. A spring 48 connected to one of the arms 32 and to the machine frame, has a tendency to rock said arms toward the bobbin carrier and yieldingly hold the drum. either in contact with the latter or at any desired distance therefrom which distance is regulated b `means of the screw 46 engaging the nose 4 The pawl 45 is adapted to engage one arm of the lever 24 in order to keep the lattter in position for maintaining the clutch members 12 and 14 out of engagement during the winding of the bobbin. In order that the pawl may release' the lever 24 at any predetermined stage of the winding of the bobbin, means are provided for adjusting the pawl relatively to theend of the arm 44 so that a greater or less movement of said arm will be necessary to move the pawl out of contact with the lever 24.

The adjustability of the pawl is effected by the means shown in Fig. 7. The arm 44 has a downwardly directed extension 44 the pawl being pivotally mounted in a slot formed in the arm above said extension and extending below the latter. A screw bolt 45 is mounted in a threaded hole in the extension 44 and projects through a slot 50 in the pawl 45, set nuts 51 and 52 being provided on the inside and outside respectively of the pawl. By changing the position of the nuts on the bolt and by screwing the latter in or out ofthe extension, a suitable distance, the relative position of the pawl tothe rod may be readily. changed and locked in adjusted position.

The manner of operation of the hereinbefore described spooling-machine is as follows: The bobbin thread a crossing the bobbin holder 6 is inserted through the slot 39 into the drum 38, wound around the roller 42, then drawn out of the drum 38 through the slot 39 and guided to the bobbin holder 6. While the spooling operation is proceeding, the drum 38 lies very near to the bobbin holder 6 since, owing to the action of the spring 48, the adjusting screw 4G is pressed against the nose 47. The pawl 45 engages the lever 24, so that the clutch 12, 14 is thrown out of gear. The rotary movement of the bobbin holder 6 is transmitted to the drum 38 by means of the gears 31, 29, 33 and 37. As the roller 42 is not capable of being shifted, the bobbin thread a will always remain on the same level in relation to the bobbin spindle 6. The slot 39 causes, however, a to-and-fro movement of the thread in a horizontal direction, so that the windings, of which the bobbin is built up, are produced. As soon as the bobbin, lying in the depression of the drum, has the necesi sary thickness, it comes in contact with said drum and gradually pushes the latter away from the bobbin spindle or holder 6. Hereby, the pawl 45 slides toward the end of the lever 24 disengaging the latter as soon as the bobbin has the desired thickness. The spring 25 then moves the disengaged lever 24 into the position, in which it releases the rod 19. Now the spring 22 will throw the clutch elements 14 and 12 in gear, so that the shaft 11 is coupled to the shaft 13. The roller 10, which till now was pressed against the lowest part of the cam-shaped front end of the clutch element 12, causes an axial displacement of the bobbin holder 6, the roller 10 being now pressed against the highest part of the clutch element 12. The axial displacement of the bobbin holder 6 causes the latter to stop, the friction wheel 3 being thrown out of gear with the wheel 2.

Owing to the fact that the bobbin thread a is guided around the roller 42 arranged on the inside of the drum 38 and which is not capable of being displaced, the friction of the bobbin thread is reduced to a minimum and no great changes in the tension of the thread can take place, since the inlet and outlet passages of the thread in the drum are arranged near each other. The drum according to this invention effecting, owing to its particular shape, a stoppage of the bobbin holder, as soon as the bobbin has the described thickness, and which acts therefore as a feeler makes the provision of such a special member entirely unnecessary.

That I claim is:

1. In al spooling-machine, a bobbin holder, means for driving said holder, a slotted drum for guiding the thread, means for transmitting the rotary motion of the holder to the drum, a thread guide arranged on the inside of said drum, the inlet and outlet passages for the thread in the drum lying near each other.

2. In a spooling-machine, a bobbin holder, means for driving said holder, a rotary slotted drum for guiding the thread, means for transmitting the rotary motion of the holder to the drum, a rotary roller arranged on the inside of said drum and means preventing a displacement of said roller, the thread being guided in such a manner around said roller, that the inlet and outlet passages for the thread in the drum are near each other.

3. In a spooli-ng machine, a bobbin holder, means for driving said holder, a stationary shaft, hollow shafts on the latter, a rotary .Y drum consistingr of two halves fixed on the hollow shafts and vforming a slot for-guiding the thread, means for transmitting the rotary motion of the holder to the drum, stationary arms mounted on said stationary shaft inside/the drum, and a roller journaled in said'stationary arms, the thread being so wound around the roller that the inlet and outlet passages for the thread in said drum are near each other.

4. In a spooling-machine, a bobbin holder, means for driving said holder, a -rotary drum consisting of two halves forming a l slot between their adjacent ends for guiding the thread, a rotatable roller arranged on the inside of said drum, arms carrying said roller, a stationary shaft on which said arms are fixed, hollow shafts to which said drum halves are fixed and through which is passed said stationary shaft, a toothed wheel on each of said hollow shafts, a shaft parallel to the bobbin holder, toothed wheels on the latter shaft gearing with the wheels on the hollow shafts, a gearing transmitting the drive from thev bobbin holder to Said shaft arranged parallel thereto,`the thread being wound in such a manner around said roller, that the inlet and outlet passages for the thread in'said drum are near each other.

In testimony that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

ALBERT BELZ.

Witnesses RANDALL ATKINSON, FRANK T1MMKE. 

